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多項式的運算

Authored by Charles Lam

Mathematics

7th Grade

Used 10+ times

多項式的運算
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪個多項式包含異類項?

6x + 6x

7x + 7x2

8x2 – 4x2

3xy – 5xy

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

化簡 (4x2)(x3)。

4x5

4x6

5x5

5x6

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(5x + 9) + (3x – 7)

下一步可以寫成哪項?

5x + 9 + 3x – 7

5x + 9 + 3x + 7

5x + 9 – 3x – 7

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

(x + 1)(x2x + 6)

下一步可以寫成以下哪項?

(x2)(6x)

(x)(x2x + 6) + 1

(x)(x2x + 6) + (1)(x2x + 6)

(x)(x2x + 6) – (1)(x2x + 6)

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

(4x – 3)(6x) + 7x

下一步可以寫成以下哪項?

(x)(6x) + 7x

24x2 – 6x + 7x

24x2 – 18x + 7x

24x – 18x + 7x

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

下列哪個多項式的各項是按 x升冪次序排列的?

3x2 + 5x + 4

5x + 3x2 + 4

3x2 + 4 + 5x

4 + 5x + 3x2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

(3x4 – 5x2 + 1) – (1 + 6x2) – (x4 + 2x)

下一步可以寫成哪項?

3x4 – 5x2 + 1 – 1 + 6x2x4 + 2x

3x4 – 5x2 + 1 – 1 – 6x2x4 + 2x

3x4 – 5x2 + 1 – 1 – 6x2x4 – 2x

3x4 – 5x2 + 1 – 1 + 6x2 + x4 – 2x

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